But visitors may not recognise the prices on the pump, as back in the 1950s a gallon of petrol could be bought for roughly four shillings and sixpence - which equates to 22p in today’s money.

This year’s event will also celebrate the recently completed Heritage Triangle street works.

The £3.4m Heritage Lottery funded project has seen the historic centre of Diss completely revamped with new pedestrianised areas, information boards detailing the history of Diss and benches added to the town.

Peter Hyde, the event organiser, said: “There is a nostalgia aspect to the day which is very popular. Last year was such a happy atmosphere and it was such a nice pleasant day.

“This year we’ve got the chance to show off the Heritage Triangle - the works have been a vast improvement to the area.

“We hold these events to increase the footfall to the town, and Diss is so fortunate to retain all its historic buildings.”

Starting from 11am, Park Radio will be on hand throughout the day playing music from the 1950s to the 1970s.

There will also be entertainment from The DM21 Ukele band, Kenninghall Morris Dancers and the Spanish street organ ‘los tubos’.

Independent cafes, delis and pubs in and around the Heritage Triangle will be open throughout the day providing a variety refreshments.